Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 11 - Rational Expressions and Functions - 11-3 Dividing Polynomials - Standardized Test Prep - Page 671: 60

Answer

Choice $B$

Work Step by Step

Dividing each term of the given polynomial by the given monomial, then $$\begin{aligned} &(2x^2+4x+2)\div(2x) \\&= \frac{2x^2}{2x}+\frac{4x}{2x}+\frac{2}{2x} \\&= x+2+\frac{2}{2x} .\end{aligned} $$ The long division method above shows that the remainder is $2$, which is not negative. Therefore, the given Statement I is incorrect. The dividend, $2x^2+4x+2$, is in standard form since the terms are arranged in decreasing order of exponents for the variable. Therefore, the given Statement II is correct. For positive values of $x$, such as $x=3$, the quotient, $x+2$, is equal to $$ x+2=3+2=5 ,$$ while the divisor, $2x$, is equal to $$ 2x=2(3)=6 .$$Since the value of the quotient (i.e. $5$) is less than the value of the divisor (i.e. $6$), then the given Statement III is incorrect. Since only Statement II is correct, then Choice $B$ is the only true statement.
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